All Scheduled Events

May, 05/05/2016
Events and times subject to change

May 5, 2016 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Savas Dimopoulos

Particle Physics with Protons, Atoms, and Black Holes

We discuss searches for physics Beyond the Standard Model at the LHC, Atom Interferometers, and Advanced LIGO.


May 6, 2016 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Dan Kasen
UC Berkeley / LBNL

What powers the most luminous supernovae?

Astronomers are discovering an increasing number of peculiar supernovae, including a class of brilliant (though rare) super-luminous optical transients, some 100 times brighter than ordinary core collapse events. What powers these phenomenal displays is unclear, and poses one of the more interesting open questions in the study of stellar explosions. I will argue, based on simple theory and numerical simulations, that some of the super-luminous supernovae are not powered by the ordinary mechanisms like radioactive decay. I will then discuss models in which the luminosity is driven by an internal engine formed when the central core collapses -- either a rapidly rotating, highly magnetized neutron star, or a black hole accreting whatever material failed to escape in the supernova explosion. Recent observations may point to a continuum of engine powered events — from super-luminous supernovae to very long duration gamma-ray bursts — that reflect the range of possible parameters for the engine and the progenitor star.


May 6, 2016 Friday 4:30 PM  - 7:00PM +
Meyer 6th Floor
Other Physics Department Events (other)

Alumni Reunion/Mixer

We would like to cordially invite physics alumni/ae back to the Physics Department for a reunion event this upcoming Spring. As the Physics Department progresses towards a relocation, we would like you to visit us at Meyer Hall for most likely the last time.

If you are interested in attending this NYU Physics Alumni event on Friday, May 6th 2016, please send your name, current email address, and graduation year to Bill LePage at wlp1@nyu.edu. We look forward to hearing from you!



May 9, 2016 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag
Boris Leistedt
NYU

Cosmology with photometric surveys



May 10, 2016 Tuesday 2:00 PM  +
Meyer 6th Floor Conference Room
Hard Condensed Matter Seminars (hcmp)


Jason Hancock
University of Connecticut

Inelastic X-ray Scattering Studies of Soft Phonons and Interacting Electrons

The first part of this talk will present a study of the first-order phase transition in YbInCu4 associated with moment screening and strong valence changes. Unlike many materials which have a single characteristic energy scale (Kondo temperature) associated with moment screening, this scale suddenly switches strongly at the transition, changing from TK<20K at high temperature and TK>400K at low T. Resonant inelastic X-ray scattering (aka RIXS) results reveal that the valence instability in this material appears to be a result of an unusual gap in the itinerant electron energy spectrum which is not usually considered in the theoretical treatments of Kondo singlet formation.
The second tale in the talk we will involve the use of high resolution scattering to explore the lattice dynamics of an unusual insulating material. ScF3 not only has strong negative thermal expansion (volume expansion is -34ppm/K), but also features an extremely robust high symmetry phase, remaining cubic with 4-atom unit cell from its high melting point of 1800K down to the lowest measured temperature of 0.5K. We show that the lattice excitations soften almost completely as temperature is lowered toward zero, and the role of quantum fluctuations is significant enough to prevent order. Broad connections to structural instabilities underpinning complex behavior in perovskite materials will be explored.


May 11, 2016 Wednesday 3:00 PM  +
Meyer 6th Floor CSMR Area
Soft Condensed Matter Seminars (csmr)


Maurizio Porfiri
New York University

Modeling the Zebrafish Animal Model

Zebrafish are gaining momentum as the third millennium laboratory species for the investigation of several functional and dysfunctional biological processes in humans, including the fundamental mechanisms modulating emotional patterns, learning processes, and individual and social response to alcohol and drugs of abuse. However, as with rodents and primates, experimentation with zebrafish constitutes a complicated and contemporary ethical issue that demands the exploration of alternative testing methods to reduce the number of subjects, refine the experimental designs with animal welfare in mind, and possibly replace live animals with other scientific instruments. Drawing inspiration from the field of mathematical finance, we propose a new data-driven modeling framework to study zebrafish behavior and, potentially, aid in the design of unprecedented “in silico” experiments. Specifically, we establish a stochastic mean reverting jump diffusion model (jump persistent turning walker) to describe zebrafish burst-and-coast swimming style. Such a data-driven framework is integrated in network-based models of social behavior to understand the effect of sudden large deviations of individuals’ turn rate on the group coordination. To offer context for this focused modeling effort, we summarize emerging experimental methods and theoretical constructs, across robotics, dynamical systems, and information theory, for the study of zebrafish behavior.


May 13, 2016 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


David Spergel
Princeton

TBD



May 18, 2016 Wednesday 3:00 PM  +
Meyer 6th Floor CSMR Area
Other Physics Department Events (other)

Physics Department Graduation Reception

Graduation ceremony begins at 3:30 PM
RSVP to rsvp@physics.nyu.edu if you will be attending. If you are a graduating student, please indicate so in your response.


May 18, 2016 Wednesday 3:00 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Other
Graduation Party



May 26, 2016 Thursday 1:00 PM  +
Hemmerdinger Hall, NYU Silver Building - 31 Washington Place
Other Physics Department Events (other)

Postdoc Research Showcase

Featured Postdocs:
Melissa Caras, PhD, Center for Neural Science
Aditya Dhananja, PhD, Tandon School of Engineering, NYU Wireless
Benjamin Kaplan, PhD, Department of Physics
PhuongThao (PT) Le, PhD MPH, College of Global Public Health
Tara Mandalaywala, PhD, Department of Psychology
Matthew Morrison, PhD, Clive Davis Institute for Recorded Music
Michael Perry, PhD, Department of Biology
Nicole Schef, PhD, NYU College of Dentistry


June 10, 2016 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Special HET Seminar
Macarena Lagos
Oxford University

Parametrizing general linear cosmological perturbations.

We have great certainty on how gravity works around our solar system: General Relativity (GR) has been found to be very accurate at these small scales. On large scales though, we still have a considerable lack of understanding about the evolution of the universe, and its constituents. While the LCDM model is in good agreement with cosmological data, this might change in the future. For this reason, we need to test GR on these scales. There are a number of proposals on how to characterize deviations from GR on larges scales, by parametrizing different cosmological evolutions of the universe - the PPF, EFT and EA approaches. The objective is to use experimental data to constrain these parameters, and thus identify the most accurate cosmological model. In this talk I will show an alternative, systematic and general, parametrization method, in which we construct the most general quadratic action for linear cosmological perturbations, given some field content and gauge symmetries. I will show the example of linearly diffeomorphism-invariant scalar-tensor theories, in which case the parametrization encompasses well-known theories such as Horndeski and Beyond Horndeski. The method can straightforwardly be applied to any gravity theory with any fields and gauge symmetries.


October 5, 2016 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Alexander Penin
University of Alberta

High energy limit of gauge theories beyond Sudakov approximation



October 12, 2016 Wednesday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series
TBA TBA

Klosk Lecture Series - Event all day


October 13, 2016 Thursday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series

Klosk Lecture Series - Event All Day


October 14, 2016 Friday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series

Klosk Lecture Series - Event All Day


October 19, 2016 Wednesday 3:00 PM  +
Meyer 6th Floor CSMR Area
Soft Condensed Matter Seminars (csmr)


Chinedum Osuji
Yale University

TBA